Seamaster Automatic CK2657

Early Seamaster AutomaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. with thick lugs and bezelBezelThe frame surrounding the crystal at the front of a watch., a sub-seconds dial at six and a bumper (hammer) automaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. movementMovementThe working mechanism inside a watch or clock.; 30 m water resistanceWater resistanceA watch’s ability to resist water entering its case under specified conditions, often stated as a pressure or equivalent depth. Seals can deteriorate and the crown can be damaged, so an original rating does not establish a vintage watch’s present resistance..